[cairo-bugs] [Bug 89521] New: segmentation fault during poppler_page_render (crashes inside _fill_xrgb32_lerp_opaque_spans)

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Tue Mar 10 11:25:28 PDT 2015


            Bug ID: 89521
           Summary: segmentation fault during poppler_page_render (crashes
                    inside _fill_xrgb32_lerp_opaque_spans)
           Product: cairo
           Version: unspecified
          Hardware: All
                OS: All
            Status: NEW
          Severity: critical
          Priority: medium
         Component: general
          Assignee: chris at chris-wilson.co.uk
          Reporter: draymond at foxvalley.net
        QA Contact: cairo-bugs at cairographics.org

Created attachment 114208
  --> https://bugs.freedesktop.org/attachment.cgi?id=114208&action=edit
(PDF file used in the test code that triggers the crash)

(this is using cairo 1.14.0 and poppler 0.32.0)

I've created a minimal test case that reliably reproduces the crash.  It 
crashes on both Windows and OS X.  However, on Windows it crashes at 
window size (1202, 931) while on OS X it crashes at window size 
(1207,932).  It also seems to be data related because the test PDF has 
two pages and it only crashes when rendering page 2.

The test PDF is attached.  Here is the test code:

#include <poppler.h>
#include <stdio.h>    // printf()

int main(int argc, char **argv)
    PopplerDocument *doc;
    PopplerPage *page;
    cairo_surface_t *surface;
    cairo_t *cr;
    double x_points, y_points;           // measured in points which are 
1/72 inch
    double pdf_width, pdf_height;        // measured in pixels
    double window_width, window_height;  // measured in pixels
    int    fit_width;
    double scale_factor;
    double x_padding;
    double y_padding;

#ifdef __APPLE__
    doc = 
    doc = poppler_document_new_from_file("file:///C:/crash/test.pdf", 
    page = poppler_document_get_page(doc, 1);  // does not crash 
rendering page 0

    for (window_width = 1200; window_width <= 1210; window_width++)
       for (window_height = 930; window_height <= 940; window_height++)
          printf("(%f, %f)\n", window_width, window_height);

          poppler_page_get_size(page, &x_points, &y_points); // 792, 612
          fit_width = (window_width / window_height) < (x_points / 
          scale_factor = fit_width ? (window_width / x_points) : 
(window_height / y_points);
          pdf_width = x_points * scale_factor;
          pdf_height = y_points * scale_factor;
          x_padding = fit_width ? 0 : ((window_width - pdf_width) / 2);
          y_padding = fit_width ? ((window_height - pdf_height) / 2) : 0;

          surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, 
window_width, window_height);
          cr = cairo_create(surface);

          cairo_translate(cr, x_padding, y_padding);
          cairo_scale(cr, scale_factor, scale_factor);
          poppler_page_render(page, cr);



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